Physics Exam 2 Study Guide
Mg sin () MG cos () = acceleration (when object is on incline)
Invers tan () =
Friction Force is in the opposite direction of the velocity and in the same
direction as the acceleration
o Think of velocity being the motion that
Chopfer 3
- Vecfors in Physics
31 Scalars Versus Vecrors
iv 1*
, - i g 1 2 « i i
Scalar: WU if 321" if? is; a *3
' Lei/i, .
'3 f2 7.
Vector: quani'i'l'y wi'rhm a3 ' nd '
How 10 ge1' To The library: need To know how for and which wcry
Even though you know
Burks1
JeffBurks
PHYS2090023
Friday12:202:10pm
CarolynJohnson
2
Table of Contents
Exp 1 Measurement
Data and Results
Additional Questions
Corrections
Exp 2 Graphing and Data Analysis
Pre-Lab Quiz
Data and Results
Corrections
Exp 3 Motion: Velocity and Acc
Chapter 4
Two-Dimensional Kinematics
4-1 Motion in Two Dimensions
If velocity is _,
motion is along a straight
line:
4-1 Motion in Two Dimensions
Motion in the x- and y-directions should be solved
_!
4-2 Projectile Motion: Basic Equations
Assumptions:
ig
1.
1. A 0.125
kg leaf is blown off the ground by a gust of wind, moving 1.00 m
straight up. If the net force on the leaf (force of the wind plus gravity) points upward and
is equal in magnitude to a constant 0.500 N, what is the leaf's final speed?
A 2.83
8/7/2012
Chapter 3
Vectors in Physics
3-1 Scalars Versus Vectors
Scalar: _
Vector: quantity with _ and _
How to get to the library: need to know how far and which way
Even though you know how
far and in which direction the
library is, you may not be
able
Two balls have their centers 3.0 m apart. One ball has a
mass of 2.7 kg. The other has a mass of 4.5 kg. What is the
gravitational force between them? Assume G = 6.67 1011 Nm2/kg2.3mi
a.
1.3x10-11 N
b.
9.0x10-11 N
c.
2.7x10-10 N
d.
9.0x10-10 N
According t
Name:_CUID:_
PHYS 207 Exam 4 Fall 2012
1. A person standing on a sidewalk hears the horn of a car which is traveling towards him at 30 m/s. If
he hears the horn to have an apparent frequency of 355 Hz, what is the frequency of the horn when the
car is sta